Gateway

Current Release 13.1 13.0 12.1

How User Connections Work with the Citrix Gateway plug-in
- Establishing the Secure Tunnel
- Operation Through Firewalls and Proxies
- Citrix Gateway plug-in Upgrade Control
Choosing the User Access Method
Deploying Citrix Gateway plug-ins for User Access
Selecting the Citrix Gateway plug-in for Users
Integrating the Citrix Gateway plug-in with Citrix Receiver
Customizing the User Portal
- Prompt users to upgrade older or unsupported browsers by creating a custom page
Configuring Clientless Access
Citrix SSO VPN client for mobile devices
Configuring the Client Choices Page
- Showing the Client Choices Page at Logon
- Configuring Client Choices Options
Configuring Access Scenario Fallback
- Creating Policies for Access Scenario Fallback
Configuring Connections for the Citrix Gateway plug-in
How a Traffic Policy Works
- Creating a Traffic Policy
- Removing Traffic Policies
Configuring Session Policies
- Creating a Session Profile
- Binding Session Policies
Configuring Endpoint Polices
Advanced Endpoint Analysis Scans
Managing User Sessions
AlwaysON
AlwaysOn VPN before Windows logon (Formally AlwaysOn service)

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NetScaler Gateway
Citrix Gateway 12.1
Configuring the VPN User Experience

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Operation Through Firewalls

January 8, 2024

Contributed by:

C S C

Users of the Citrix Gateway plug-in are sometimes located inside another organization’s firewall, as shown in the following figure:

Figure 1. Connection from user device through two internal firewalls

User connection through two internal firewalls

NAT firewalls maintain a table that allows them to route secure packets from Citrix Gateway back to the user device. For circuit-oriented connections, Citrix Gateway maintains a port-mapped, reverse NAT translation table. The reverse NAT translation table enables Citrix Gateway to match connections and send packets back over the tunnel to the user device with the correct port numbers so that the packets return to the correct application.

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Operation Through Firewalls

January 8, 2024

Contributed by:

C S C

January 8, 2024

Contributed by:

C S C

Operation Through Firewalls

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